Abstract:

It has become common knowledge that 3D printing is a very rapidly developing technology and has enormous potential. Especially in recent years, this technology has become so easily accessible, that many mechanical engineering students already have a substantial experience with it. The Machine Design Laboratory (MADLAB) of ASPETE offered groups of students the opportunity to explore the advantages of this method in the context of their final projects. Final projects usually are theoretical essays, involving mathematical calculations and culminating in a report and a presentation. MADLAB has adopted an alternative educational approach: that of “learning-by-doing”. The students, acting as engineers, although within an educational and supportive environment, designed and constructed full-scale and functional equipment - mechanisms, machines and devices-, for the laboratory's educational and research activities. An air-lock rotary feeder, a planetary gears’ speed reducer and a device for stress analysis through photo-elasticity were constructed, among other, with the extensive use of 3D printing. This allowed the students to evaluate the advantages and limitations of this technology with regard to its use in the production of teaching aids. Students developed concurrently soft skills - communication and presentation skills, planning and time management, conflict resolution etc. - that are critical in the modern workplace. The students who participated in these projects reached the conclusion that 3D printing technology is ideal for the manufacture of laboratory equipment. They also stated that these tasks gave them great satisfaction, inspired them, excited them and provided them with self-confidence for their future career.

Keywords:

3d printing, active learning, learning-by-doing, soft skills development.